president obama, three former u.s. presidents. the head of more than 90 other nations will be here paying their respects to a man who transformed south africa from a pariah into a modern nation with a place on the world stage. it's 10:30 here in johannesburg. 3:30 on the east coast of the united states. we welcome all your viewers in the u.s. and around the world. i'm joined here at fnb stadium by chief international correspondent christiane amanpour and robin kernow. >> it's electric. the rain they say here is good luck. they truly believe it. of course, the rain is doing a little bit to slow down some of the public transport which was specifically laid on to bring in the thousands and thousands and tens of thousands who needed to get here because the government has been announcing on the television, don't drive your cars. buses will be here for you. trains will be here for you. everything is free. but you can imagine it takes a little bit of time. i've seen president f.w. de klerk here always very moving to talk to him. he was t